Putting my "mind reading" hat on, I think orild_eiren wants to find out how to add a user who is already using a particular workstation to a domain without losing all the details contained in the user's existing local profile on the workstation.

If this is what you want to do, simply login as the Adminstrator on the workstation, and using the User Profiles applet (Control Panel\System\Advanced\User Profiles\Settings) copy the user profile in question to "C:\Documents and Settings\Default User".

Now when you add a new domain user to the PC, it will use the settings in "C:\Documents and Settings\Default User". Also if you make a copy of "C:\Documents and Settings\Default User" before overwriting it, you can copy it back after adding the new domain user.

I know this is a old topic but couldnt you create the AD account and login to he local machine as Admin and go to the users local profile in documents and settings and on the security tab give access to domain\user name ?